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End plate pressing component of redox flow cell galvanic pile

A technology of liquid flow batteries and compression components, which is applied in the field of electrochemical energy storage, can solve problems such as deformation, difficulty in battery assembly, and low rigidity, and achieve the effects of enhancing reliability, facilitating large-scale mass production, and reducing deformation

Active Publication Date: 2014-07-23
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, multiple concave-convex structures are set between the locking frame and the end plate, and the simultaneous positioning of multiple positioning parts brings difficulties to battery assembly; in addition, the threaded holes of the locking bolts are set at both ends of the grid-like structure, and the pressure The torque of the tightening force is large, but the rigidity of the grid structure is small, which is prone to deformation and causes the problem of stack sealing

Method used

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  • End plate pressing component of redox flow cell galvanic pile
  • End plate pressing component of redox flow cell galvanic pile
  • End plate pressing component of redox flow cell galvanic pile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] The end plate pressing member of the flow battery stack in the present invention is further described as follows:

[0085] Compression frame

[0086] Use square steel with a side length of 60 mm and a wall thickness of 4 mm to weld each other to form the main body of the compression frame; overall dimensions: length 720 mm, width 620 mm;

[0087] 2 guide columns are vertically welded on the bottom surface of the support beam at the centerline of the length direction of the compression frame, symmetrical to each other on both sides of the centerline of the width direction of the bottom surface of the compression frame, using stainless steel with a length of 50 mm, a width of 50 mm, and a height of 35 mm production;

[0088] 9 disc spring chassis are distributed in an array, welded to the bottom surface of the support beam in the length direction of the compression frame, made of stainless steel with a diameter of 75 mm, the inner diameter of the disc spring chassis is 6...

Embodiment 2

[0107] The end plate pressing member of the flow battery stack in the present invention is further described as follows:

[0108] Compression frame

[0109] Use square steel with a side length of 50 mm and a wall thickness of 8 mm to weld each other to form the main body of the compression frame; overall dimensions: length 720 mm, width 620 mm;

[0110] Two guide columns are vertically welded on the bottom surface of the support beam at the centerline of the width direction of the compression frame, symmetrical to each other on both sides of the centerline of the length direction of the bottom surface of the compression frame, using stainless steel with a length of 45 mm, a width of 45 mm, and a height of 25 mm production;

[0111] 9 disc spring chassis are distributed in an array, welded to the bottom surface of the support beam in the length direction of the compression frame, made of stainless steel with a diameter of 92 mm, the inner diameter of the disc spring chassis is...

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Abstract

The invention provides an end plate pressing component of a redox flow cell galvanic pile, belonging to the field of manufacturing technology of redox flow cell galvanic pile. The end plate compressing component is characterized by comprising end plates on two sides, pressing frames which are pressed on the end plates and pressing connecting pieces of the pressing frames, wherein the end plates are provided with blind holes for placing disc springs; and the pressing frames are provided with disc spring guide bars, guide posts for positioning the end plates and limit plates for positioning the end plates and each unit frame of the redox flow cell. The end plate pressing component provided by the invention can exactly position and press each part in the redox flow cell galvanic pile, ensures that pressing force on the plane of each plate frame of the redox flow cell is distributed evenly, and is convenient to assemble the galvanic pile. Through the matching between the strip bulges on the limit plates and the groove on each cell plate frame, the electrolyte leakage caused by local dislocation of each cell plate frame of the redox flow cell is avoided. Elastic parts are used for compensating the deformation caused by temperature change as well as the local deformation caused by vibration in the transport process, keeping the original pressing force on the galvanic pile and improving the sealing reliability of the galvanic pile.

Description

technical field [0001] The invention belongs to the technical field of electrochemical energy storage, in particular to a technical method for manufacturing a liquid flow battery stack. Background technique [0002] Using renewable energy such as wind energy and solar energy to generate electricity is one of the important ways for human beings to obtain energy from nature in the future. Due to the randomness and discontinuity of the wind and solar power generation process, it is difficult to maintain a stable power output. It needs to cooperate with a certain scale of power storage devices to form a complete power supply system to ensure continuous and stable power supply. Therefore, the development of energy storage systems with high power conversion efficiency, large storage capacity, and good economic performance has become the key to the development of renewable and clean energy. Among various forms of energy storage devices, the liquid flow battery system has the funct...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/24H01M8/18
CPCY02E60/528Y02E60/50Y02P70/50
Inventor 王保国蒋明哲范永生韩洪涛初晓
Owner TSINGHUA UNIV
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